Splice-bar.



A. ROBIGZEK'. SPLICE BAR. APPL-I ATIOE FILED JULY 8, 1912.

1,102,081 w Patented June 30, 1914 4 SHEETSSHEET 1.

A. ROBICZEK.

SPLICE BAR.

AP1 LIOATION FILED JULY 8, 1912.

1 ,1 02,081. Patented June 30, 19.14.

- 4 SHEETS-SHEET 2.

A. ROBIGZEK.

SPLICE BAR.

APPLICATION FILED JULY 3, 1912.

1 ,1 02,081, rammed June 30, 1914. V 4 SHEETS-SHEET 3.

A. HOBIGZEK.

SPLICE BAR.

APPLICATION FILED JULY 8, 1912.

; 2 0 1 Patented June 30, 1914.

- 4 SHEETSSHEET 4.

a is a View simi 4G track at first only UNITED STATES PATENT orrron.

ADOLF ROBICZEK, OF VIENNA, AUSTRIA-HUNGARY.

SPLICE-BAR.

Specification of Letters Patent.

PatentedJune so, 1914.

Application filed July 8. 1912. Serial No. 708,300.

T 0 all whom it mag concern:

Be it known that I, Anonr ROBICZEK, a subject of the Emperor of Austria-Hungary, and residing at Vienna, Austria-Hungary, have invented certain new and useful Improveinents in Splice-Bars, of which the following is a specification.

- On running over'the rail joints of a new slight vibrations are felt. This condition however lasts only as long as the wedging actionof the splice bars produced by the tension of the fish bolts remains undiininished. The stressing of the rail joints results in a wear of the contact surfaces between the rails and the splice bars. Since however the material of the splice bars is considerably softer than that of the rails. thewear of the latter is appreciably less than the wear of the splice bars. Owing to this wear of the contact surfaces the splice bar on screwing up of the fish bolts penetratcs always farther into its seat, and if the wedgin'g action of the splice bar is to be maintained undiminished, it may penetrate so far that the fishing surface of thee lice bar comes to the fillet between the rail iead or the base "flange and the web.

In the accompanying drawing: Figure 1 illustrates in outline a vertical cross section of a rail joint as commonly constructed, portions of the rail and. splice bar not required to illustrate the invention being omitted; v Fig. 2- illustrates in outline a portion of a similar section of a joint embodying the present invention; Fig. 3 illustrates a deformatioii' of the splice bar that may occur with jointstof ordinary construction and which is avoided by the present invention; Fig. 4 'lar to, and on substantially the Fig. 1 of the improved joint construction hereinafter articular-1y described; Fig. 5 illustrates t e change in relation between the rail'and splice bar of a common formof joint due to wear and adjustment; Figs. 6 tOSilluStrate'the variations or changes in relative position of a rail and splice bar, constructed according to the present invention, due to wear, .etc.; Figs. 9 toll illustrate objectionable conditions and deformations that occui' in joints of 'ordinary construction and which are avoided by my invention. w I

in the several figures A-B represents the same scale as,

reached the final its wedging action rapidly decreases, the reaxis of a rail, 1 a part of the rail head, 2 a portion of the base flange and 3, 4;, respectively, the upper and lower sections of a splice bar.

Referring particularly to Fig. 1 the fishing surfaces of the splice bar are assumed as similar, so that the direction of motion of the worn splice bar is at right angles to the rail axis AB. 5 and are the points at which the filleting of the rail begins. 7, 8, 9, 10, 11 and 12 denote the original position, and 5, 13.1 1, and 6 the final position of the splice bar.

which the splice bar can penetrate into the fishing seat. After this distance the splice bar encounters a resistance at the fillets of the rails which becomes greater and greater the farther in the splice bar is forced. If the splice bar is position above referred to,

suit of which is that the vibrations on pass:

ing over the. rail joints become greater and" kept in use after having 15, 5 and 16, 6 is theextent to the rail ends and the fishing surfaces of the i rails and spllce bars subjected to hammering. The top surfaces of the rail ends thereby become deformed inthe well-known mannet, and this deformation always tends to increase. splice bars and the rails are then subject to a considerably more rapid wear. The hammering action on the fishing surfaces creates, as canbe observed in an ridges or shoulders, and the rail head then assumes in the vicinity ofthe splice bar seats the form shown in Fig.0. Such a ridge '25 (Fig. 9) is a greatdisadvantage for areliable fishing with an unworn splice bar.

for the reason that the ridge 25 cuts into the fishing surface or the outer fillet of the splice bar and makes it impossible for the latter to penetrate into its seating portion, whereby the wedging action of the splice bar is inoperative. Y

Another disadvantage of known types of splice bar is that on wear of the fishing surfaces of the splice bar a ridge projecting above this flat surface is formed, which bears against the outer edge of the rail head and prevents further penetration" of the s lice bar toward the web. A ridge or Step 26 Fig. 10) or 27 (Fig. 11) thus occurswhen the fishing surface 0 the splice bar projects above old track,-

The fishing surfaces of both the surface of 'the rai the fishing surface of the rail head, as for example in outer splice bars of the shown in Figs. "2 and 10, or in the cranked splice bar of the profile shown in Fig. 11,

and at the part which bears against the ram rower rail head. A ridge 1'? (Fig. 3) is formed when the height of the splice bar is too great or when in consequence of inequalities in the fishing surfaces, which is frequently the ease, the splice bar does not penetrate suiliciently deep into the seating on screwing up the fish bolts. Such a ridge or shoulder considerably reduces the effective ness of the splice bar from theheginning, and the rail joint is then rapidly deteriorated by hannnering. If the ridge is finally destroyed by repeated and powerful tightening of the fish bolts, the splice bar can penetrate at once a considerable distance into its seating, since meanwhile it has been subjected to extensive hammering. The splice bar then soon attuins its maximum penetration because in splice bars of known profiles the possible extent of uninterrupted penetration is very small.

The form of cross section of splice bars according to this invention obviates all these disadvantages, and insures that the worn splice bar bears a ainst only the flat fishing and that the splice bar can penetrate the maximum possible distance into the seat without any diminution ofthe original wedging action corresponding to the degree to which the fish bolts are screwed up. In F 1g. 4 the profile cf the splice bar according to the Jresent invention is illustrated to an enlarge scale.

To prevent the formation of a ridge (Fig. 3) or a shoulder (Fig. 11) the splice bar is provided at the part adjacent tofthe outer edge of the rail head, with a longitudinal bevel 28 (Fig.

In an outer s lice bar the upper fiat fishin M surface of w ich projects he nd the flat fis ing surface of the rail, the ormation of a shoulder 26 (Fig. is prevented by providing the fishing surface of the splice bar 'ith a lon itudinal groove 18 (Fig. 2). The bevel 28 ig. 4) or the groove 18 Fig. 2 also prevents a ridge 2!) on the rail (Fig. 9) from working into the splice bar, whereby the substantial advantage is obtained that the improved splice bar exerts its full wedgin action even with old rails having worn fis ing surfaces.

To enable the splice bar to have the maximum possible penetration into its seating while retaining the original wedging action corresponding to the tension of the fish bolts, the surfaces of the s lice bars facing the parts of the rail web a aeent to the head or :2 5- fl aga are rrdi'lded wi h a ce depress on the base" fiangiof the'rail is'syrnme'tric with l9 2'9lF s-.s. br we e The we g o s the spi e bar aw the upper (Fig. 8 These depressions or grooves may he o lifierent shape but the greatest advantage is obtained when they are of such form that the splice bar (an penetrate into its seating until it abuts against the web of the rail, without the original wedging effect. of the splice bar undergoing any decrease. In the shape of the depressions 19, or grooves, Fig. 8 care must be taken that, maintaining the necessary breadth of the flat fishing surfaces of the splice bar, the permissible wear, 5.. c. the wear experienced by the splice bar on penetrating from the original to the final position, is as great as possible. It is advisable to form the depression or groove with such dimensions, that in the maximum penetration of the splice bar there is still a clear-l auce to allow for any solid bodies which may have penetrated into the cavity.

In Fi s. 5, 6 and 7 are shown the extents to whici the splice bar wears in passing from the original to the final position, and also the distance moved through by the splice bar, Fig. 5 relatin known cross section, an Figs. 6 and 7 the splice bars according to the resent invention. The known cross sections are indicated with dotted lines in Figs. 6 and T.

In all the fi ures the wear surface is denoted by 21. IN the distance moved through by the splice bar by .22. In Fig. 6 the contact point 23 taken in Fig. 5 as the starting oint for the shoulder 19 is retained, while I l Fig. 7 the depression or groove is broader and therefore the fishing surface of somewhat smaller area. i v

If instead of the depression a groove is providedas illustrated in Fig. 8, this groove can be so arranged that the fishing surface of the splice bar is made broader. The projectin" edge .24 can come into contact only with t e flat fishing surface of therail and is worn like all the oss hatched surfaces in Fig. 8 on penetration of the s lice bar so that owing to this broadenin tie original wed ing effort of the splice/Far undergoes no ecrease.

W'ith fiat rail fillets, the circumstance that in this case atthe point 5 or 6 of Fig.

to a splice bar of lthc filleting does not possess any appreciable deviation from the direction of the flat. fishing surfaces of the rail, can be made use of in the construction of the depressions 19 and 20 (Fig. 4) or in the formation of the grooves (Fi 8), to broaden the flat fishing surfaces of tie splice bars.

The final position of the splice bars in the different figures is shown by chain dotted lines.

The cross section of s lice bar according to the presentinvention a ordseonsiderable adyantages. 'Owin to its bevel 28 (Fig.4) or its groove 18 (jig. 2) the splice bar will never encounter a resistance at the outer be given their original grooves (Fig. 8) so formed that the bar can to the present invention. I

'- clearance between the bar and the rail web 1,102,081 I V B recaution is usually not observed with the result that the rail joint is subjected to hammering.

The improv d splice'bar according to the present invention has the further great advantage, that rail joints which have become deformed, can be improved.

Having now described my invention what I claim as new and desire to secure by Letters Patent is I 1. A splice bar for said rails having longitudinal depressionsor grooves at the inner rail head fillet, owing to a ridge 17 on the bar (Fig. 3), a ridge 25 (Fig. 9) on the rail, or a shoulder 26 (Fig. or 27 (Fig. 11.)

Splice bars of excessive length when the groove or bevel is suitably formed, have no disadvantageous results. Shortness of the splice bar is even less objectionable as will be evident by comparing the shaded wear surfaces shown in Figs. 5, 6, and 7, from which parallel strips of equal height should be assumed removed. The permissible wear of the improved splice; bar, as will be seen on comparing the shaded areas 21 in Figs. 5, 6, and 7 is appreciably greater, the result of which is that the improved splice bars according to the invention have a much longer life than those of former types, and retain their wedging action undiminished. Another substantial advantage of the improved splice bars is that ordinary new and already us splice bars which have not been screwed in as far as the rail web, can wedging action by altering them to the cross section according enable the splice bar to penetrate into its seating until the inner side of the bar abuts against the rail web in spite of the presence of fillets in the rail.

2. A splice bar for railway rails having its inner corners and the upper outer corner cut away, whereby the bar may be adjusted inwardly until it contacts with the webs of said rails regardless of the presence of fillets on the rails and will uniformly contact with .justed positions.

3. A splice bar for rails having a lon itudinal groove at the inner corners of t e fishing surfaces, so formed as to leave a pro- A splice bar with depressions 19, I or be screwed in until it abuts against the rail web, without diminuation in wedging efiort also offers the advantage that from the position of such a splice bar in thefishing seat it can be at once observed whether the bar can still be kept in use; on the contrary with a splice bar of ordinary profile the the fishing surfaces, substantially as described. V

In testimony whereof I aifix my signature in presence of two witnesses.

. Witnesses:-

v WENZEL LINKE, i; AUGUST Fnoonn'.

must be determined .by exact measurement to known whether such a splpice bar is still exertingits original wedging effect. This corners of the fishing surfaces, adapted to the heads and bases of said rails in all adjecting heel or edge increasing the area of ADOLF RoBiozEK. f 

